Hazardous water, displacement, and rising police violence still plague the city, but Mayor Paes insists Rio is already better off thanks to next year's Summer Olympics.

With a little less than one year to go before the Summer Olympics, Brazilian and IOC officials gathered earlier this week to celebrate the progress made so far. Olympic Park, Olympic Stadium, the athletes’ village, and the aquatic center are all more than 75 percent complete, according to Rio’s mayor, Eduardo Paes.

That doesn’t mean all is well. An Associated Pressinvestigation last month revealed “dangerously high levels of viruses and bacteria from human sewage in Olympic and Paralympic venues.” Health concerns, says Rio 2016 organizing committee head, Carlos Nuzman, have led to “several” unidentified nations dropping out of events. Nuzman, according to The Guardian, insists the venues will be safe for athletes once the Games begin.

For those who live in Rio’s favelas, progress from Olympics-related development isn’t so clear. Last June, displacement efforts turned violent as the last few holdouts in Vila Autódromo clashed with police. City officials say the land is needed for Olympic Park access roads but many residents suspect luxury housing will take their place once the Games are over.

For those who live in Rio’s favelas, progress from Olympics-related development isn’t so clear.

Meanwhile, a new Amnesty International report states nearly 16 percent of Rio’s total homicides since 2010 have been committed by on-duty police officers. The main cause, according to Atila Roque, Amnesty International Brazil’s director, is a “toxic cocktail of a corrupt, violent and ill-resourced police force, communities so poor and marginalized they are hardly visible, and a criminal justice system that constantly fails to deliver justice and reparations for human rights violations.”

But the mayor insists that despite Rio’s issues, the city is already better off for the Games. Paes told reporters on Wednesday that public transit ridership has risen from 16 to 63 percent as a result of new investments in bus and metro service. “Don’t come here wanting Swiss, Swedish or Danish levels of development,” says the mayor, adding, “we are not there—but we have advanced a lot in recent years.”

Fisherman Fabricio, resident of the Vila Autodromo favela, rides on his boat in front of the construction work for the Rio 2016 Olympic Park in Rio de Janeiro, Brazil June 9, 2015. (REUTERS/Pilar Olivares)A view shows the construction site of the Rio 2016 Olympic Aquatic sports venue at the Rio 2016 Olympic Park in Rio de Janeiro, Brazil, July 24, 2015. (REUTERS/Sergio Moraes)Rio de Janeiro's Governor Luiz Fernando Pezao (2nd L), Rio de Janeiro's Mayor Eduardo Paes (C) and Rio 2016 Olympic Games Organising Committee President Carlos Arthur Nuzman (2nd R) walk through a wall broken during a ceremony to mark the last detonation of rocks at one of the two tunnels on the Transolimpica freeway route, which will connect the Rio 2016 Olympic Park and the Deodoro Sports Complex, in Rio de Janeiro, Brazil August 4, 2015. (REUTERS/Ricardo Moraes)The Rio 2016 Olympic Golf venue is pictured under construction in Rio de Janeiro March 25, 2015. (REUTERS/Ricardo Moraes)Workers are pictured at the construction site of the handball venue at the Rio 2016 Olympic Park in Rio de Janeiro, Brazil, August 5, 2015. (REUTERS/Sergio Moraes)Athletes start the swimming leg of the men's triathlon at the ITU World Olympic Qualification event on Copacabana beach in Rio de Janeiro, Brazil, August 2, 2015. (REUTERS/Sergio Moraes)A child inside a car looks at partially demolished houses next to the construction work for the Rio 2016 Olympic Park in the Vila Autodromo favela in Rio de Janeiro, Brazil, June 9, 2015. (REUTERS/Pilar Olivares)A resident of the Vila Autodromo favela picks up her clothes in front of the construction work for the Rio 2016 Olympic Park in Rio de Janeiro, Brazil June 9, 2015. (REUTERS/Pilar Olivares)A view shows the construction site of the Rio 2016 Olympic Tennis venue at the Rio 2016 Olympic Park in Rio de Janeiro, Brazil, July 24, 2015. (REUTERS/Sergio Moraes)A worker inside a garbage-collecting boat collects the remains of garbage from the Guanabara Bay in Rio de Janeiro, Brazil, July 1, 2015. (REUTERS/Sergio Moraes)A view shows the construction site of the Rio 2016 Olympic Tennis venue at the Rio 2016 Olympic Park in Rio de Janeiro, Brazil, July 24, 2015. (REUTERS/Sergio Moraes)Buildings under construction are pictured at the Rio 2016 Olympic Games athletes village in Rio de Janeiro, Brazil July 21, 2015. (REUTERS/Ricardo Moraes)